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To investigate the effects of male aging on semen quality, DNA fragmentation and chromosomal abnormalities in the spermatozoa of infertile patients and fertile men. In the patient group, semen volume and vitality of spermatozoa decreased significantly with age, while sperm concentration showed a statistically significant increase with age. DNA fragmentation as well as disomy of sex chromosomes and disomy 8 did not show a statistically significant change with age.

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This is very normal and let's talk about why. We need to get a little graphic, so bear with me. Ejaculate the stuff that comes out when a man ejaculates is made up of a lot of different things.

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I had a vasectomy in I was cleared by the doctor to have sex without risk of being fertile. I have since been divorced.

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Human female orgasm is a vexed question in the field while there is credible evidence of cryptic female choice that has many hallmarks of orgasm in other species. Our initial goal was to produce a proof of concept for allowing females to study an aspect of infertility in a home setting, specifically by aligning the study of human infertility and increased fertility with the study of other mammalian fertility. In the latter case - the realm of oxytocin-mediated sperm retention mechanisms seems to be at work in terms of ultimate function differential sperm retention while the proximate function rapid transport or cervical tenting remains unresolved.

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If you are thinking about getting pregnant, you can do many simple, effective things right now to improve your chances of conception, because lifestyle can have profound effects on the reproductive functions of women and men. This means that increasing your fertility potential is something that you both can do without outside help. In addition to adopting a fertility-boosting diet and getting into the fertility zones for weight and exercise, there are a number of lifestyle choices you can make for improving fertility naturally.

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Let's just admit it: We are in deep, committed probably co-dependent relationships with our phones. There is also a claim that consistent exposure to mobile phone radiation could negatively impact sperm quality, potentially causing fertility issues in men. This theory has some so freaked out that a German company started manufacturing underwear that claims to absorb 98 percent of cell phone radiation and 70 percent of Wifi radiation.

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Disclosure of donor conception to children was compared between solo mother and two-parent families with children aged 4—8 years conceived since the removal of donor anonymity in the UK. Semi-structured interviews were conducted with 31 heterosexual solo mothers and 47 heterosexual mothers with partners to investigate their decisions and experiences about identifiable donation and disclosure to their children. No significant difference was found in the proportion of mothers in each family type who had told their children about their donor conception solo mothers

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Even the little drop of precum on the tip of his penis for lubrication contains sperm and if his penis gets inside some of that sperm is going to be left behind. Ejaculation just increases the odds. Again, if he ejaculated on the outside of her vulva that chance increases quite a bit.

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The IUD has two tiny strings that hang through your cervix into your vagina. You check the strings every so often to be sure your IUD remains in position. In that regard, the procedure is similar to a getting a Pap smear.

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According to a study published in Archives of Sexual Behaviorpeople in the United States seem to be having more anal sex today than they did in the past. In addition, the researchers learned that many women find anal sex enjoyable, while others find it painful or unpleasant and only agree to it due to some other factor. Common factors include feeling pressured by a sexual partner and wanting to avoid pregnancy, among others.


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    where are the sources for this? she seems to only do soft-core